Based on the definition, I'd say a definate no for the U.S.:
Common to all definitions is the attempt to mobilize entire populations in support of the state and a political or religious ideology, and the intolerance of activities which are not directed towards the goals of the state, such as involvement with labour unions, churches or political parties.

We have multiple religious groups:
http://www.adherents.com/rel_USA.html#religions

Multiple political parties.........granted the top two are the favored but still:
http://www.politics1.com/parties.htm

We also have our share of Extremist/ Radical Groups which in a true Totalitarian system would not be tolorated.

Between these examples and the fact that people in media can actually get on the tube and bad mouth our leaders, policies, etc.......well, I think that covers it pretty well. I'll stick with a no to this one.

Have a good one!:thumbsup: